. >> top stories were following for you on this tuesday apple succinct. three people are dead including an 8 year-old and 176 are hurt this morning after two bombs exploded near the finish line of the boston marathon. president obamas said those responsible will feel the full weight of justice. the fbi is taking charge of the crow investigation. right now they say there is no motive and there's no one in custody. >> meanwhile back in the bay area, security and law enforcement officials are stepping up patrols on the airport to public transportation, if you're out and about stand there expect to see at least as is everywhere. >> witnesses describe some of the injured lost limbs in the boston marathon explosions. one man was covered with the evidence of yesterday's attacks. >> my pants, a close. >> showing the flag?. the flag i was holding the whole time and this is how the flag ended up covering the blood of all the victims terry >> there were thousands.. >> if there were thousands of people running the marathon or watching it when the bombs went off. >> t